What is the big stick policy?

Diplomatic policy developed by Roosevelt where the "big stick" symbolizes his power and readiness to use military force if necessary. ... A policy proposed by the US in 1899, under which ALL nations would have equal opportunities to trade in China.

it President Theodore Roosevelt’s foreign policy  

Explanation:

"speak softly and carry a big stick; you will go far."  it was his way saying if you seem hard and everyone will respect you but that doesn't mean go around and threatening to kill people or anything. It also meant that everyone would have fair trade with China. ( we learned it 2 ways)

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation: